I Don't Know about that , But I have been doing this for well over 20 years of Growing BUNGA thats what we call good weed here in the U P, anyways I use What was called Peters Blossom Booster. Is now Jacks BB, Well with all my years of growing I used Strickly Peters and Alaskan Fish Emulsion. and I have had some of The Stickiest, Ickiest. Weed I have ever Smoked and So many Others over the years have, Well anyways I have been Using FOX FARMS . Big Bloom. Grow Big , Tiger Bloom , Open Sesame. Beastie Bloomz,Cha Ching, and Sledge Hammer Flush, And Have not had the Results That I have had with the Peters Or Jacks and The Alaskan FE. And what takes the cake is I started A long time ago under 2-400 Hps, and Now I am Using 4-600 Hps. and one 600Mh, for Baby Room. Still not getting the results I have with the Old I have No Idea Y but It Kinda pisses me off, Using same soil ProMix Hp and Bx, The only thing really changed besides the lights was my pot size I was in 2 gallon now 3 gallon. I think I am going to go back try the Peters and the Alaskan again, and log the diff, U can see some of my pics somewhere here they should still be around, I still can't navigate to well around this Site I am a Garden person , Not to well on these things or typing. any input on this or what ever Post me let me Know. Happy Trails Oh if anyone has used Advanced Nuts let me know how they work I am willing to try other things but u all know as well as i do when you change something you may Mess a lot of Shit up for the next coulple months.